Will this be a weaponless convention?

I'm going with a friend who is putting a lot of time and effort into her costume. And I think she's going to have "fake" blade-like weapons made. We're driving, so no concern about airlines, but are her wonderfully constructed props going to confiscated at the door? That would be quite a blow to her. What's the advice here? Any would be appreciated, before she goes to the bother.

Any word on backpacks and other bags inside the convention center? I'm sure we'll all want to bring something to carry all our supplies in. Cameras, film, jacket, costume paraphenalia, autograph books, etc. Just wondering if anyone has asked WotC about this yet, just in case?